Fire box



A. J. HABERMACHER March 25 ,11924.

FIRE BOX Filed March 3, 1922 .Tl n d @atenten man "t" ANDREW JT.

BOX..

Application filed March 3, 1922. Serial No. 540,906.

To all fio/tom it may conce/rn.'

Be it 1nnown that l, ANDREW il. Henna Macnee, a. citizen ot the United States, residing at Fort llVorth, in and State of rllenas, and useful is a specification.

the county of Tarrant have invented a new Fire Box, of which the following This invention relates to tire-bones for boiler furnaces desiffned for use in connection with locomotive, stationary and marine boilers and in any o oil is used as a fuel.

ther structures wher lt is the practice in oil burning furnaces to provide air holes for directing fresh air into the lire-bones but tionable because the tended to intercept the from reaching the splash wall.

these have been objeccurrents of air have fire and prevent' it Consequently imperfect combustion has resulted and there has been a considerable waste ot fuel through the discharge of unconsumed portions producing a heavy smoke.

lt is an object of the prese-nt invention to provide simple and eilicient means for preventing the iniiowing the tire blast, but wh mits thorough mixing of air `from intercepting ich, nevertheless, perthe air with the fuel and promotes combustion, thereby saving fuel and rendering the combustion products substantially smokeless.

`With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combiw nation and arrangement oi parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made withoutdeparting rointhe spirit of the invention.

ln the accompanying drawings the preferred form of the invention has been shown.

ln said drawings*- Figure l is a plan view of a portion of a lire-box showing a bridge therein such as constitutes the present invention.

Figure 2 is a transverse section on line 2-2, Figure l.

Referring to the figures by characters of reference l designates ferred construction ad oil. 2Y designates the a. nre-box ot' any preapted for burning fuel burner nozzle for directing the nre blast into the furnace, and 3 designates the splash wall against which the lire blast is directed. There is provided in the bottoni of the lire-bon a. relatively7 wide air intake port fland the tire blast is directed over the central portion of this port. Ordinarily the inrushing air tends to dissipatel the fire at this point with the result that it does not properly come against the splash wall. To overcome this objectionable action a bridge 5 is placed across the middle portion of the port directly under the line of the fire blast and, consequently, the air will not ascend directly under the lire blast but will be divided into two currents entering the lire-boi; at opposite sides of the blast. rlhus the impact of the blast against the splash wall will not be interfered with but nevertheless a suiiicient amount of air will be admitted to the fire-bon and be mixed with the fuel to insure practically perfect combustionand a substantially smokeless product oi combustion. As the air will not delect the lire blast upwardly the lire will hit the splash wall close to the bottom thereoi2 and will iniX with the air between the air port and the splash wall so as to insure proper combustion.

What is claimed is zl. ln an oil burning furnace having a splash wall at one end, means spaced troni the splash wall for directing a fire blast against the splash wall, and an air intake port in the bottoni oi the furnace, of a bridge extending over the port below the line of the tire blast.

2. In an oil burning furnace having splash wall at one end, means at the other end for directing a fire blast against the splash wall, and an air intake port in the bottoni or" the furnace, of means between the air portand the line of the iire blast for preventing dissipation of the lire blast by the iniiowing air.

lu testimony that l claim the foregoing as my own, l have hereto aiiixed niysignature in the presence of two witnesses.

G. K. MARTIN, WM. R. Boo'rn. 

